PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

IFR Question

Old Jul 28, 2005 | 01:19 PM
  #1  
LETZ RUN's Avatar
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Im using a .bin from a car w/ exactly the same everything except for year. I need to change the injectors from 28 (2002) to 26 (1999). I went to the link in the sticky for calculations. The car is not started yet so I cant get the fuel pressure at idle, can I just put the pressure w/ pumps on to get it started and then check pressure and recalculate it?

would the 3 values be like this for stock 26lb injectors?

Injector Rated Fuel Pressure: 43.5
Your Fuel Rail Pressure: 58
Injector Rated Flow Rate 26


The car has 58psi of fuel pressure w/ the key on but not running. So where do I put those final table values in HPTuners? Can someone point me in the right direction (menuwise) of where to find the refrenced table in the software.

This is all I'm needing to fire the car.
Thanks
Charles
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Old Jul 28, 2005 | 02:32 PM
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Why don't you download a tune from a stock '99 and copy the IFR table into your '02 tune?
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Old Jul 28, 2005 | 02:40 PM
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Originally Posted by TAQuickness
Why don't you download a tune from a stock '99 and copy the IFR table into your '02 tune?

thats what my plan origionally was, but i was wondering if my added fuel pump would increse the pressure or not, thats why i thought i needed that calculator.. i will do that.. thank you sir!
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Old Jul 28, 2005 | 03:17 PM
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You probably want to do the calculator as the pressure is different. Ask Chris on HPTuners.com

Sorry, just re-read your post. If your still at stock at 58psi, just copy the tables.
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Old Jul 28, 2005 | 03:27 PM
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Copy and paste this in your IFR table. This is from my buddies stock 99 LS1 file.

26.414064
26.600079
26.786093
26.910103
27.096118
27.282132
27.406142
27.592156
27.716166
27.902181
28.026190
28.212205
28.336215
28.522229
28.646239
28.832253
28.956263
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Old Jul 28, 2005 | 03:54 PM
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Thanks for yoru help guys, this thing should be thumpin tomorrow i hope.
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